Premium
Synthesis of ether‐linked bisoxazolines and their use in step‐growth polymerization reactions with phenolics
Author(s) -
Tong Yuhua,
Gao Feng,
Huang Yongqing,
Schricker Scott R.,
Culbertson Bill M.
Publication year - 2002
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.170
Subject(s) - ether , thermosetting polymer , polymer chemistry , monomer , differential scanning calorimetry , polymerization , glass transition , bisphenol , materials science , polymer , phenol , bisphenol a , formaldehyde , step growth polymerization , organic chemistry , chemistry , epoxy , physics , thermodynamics
Six new ether‐linked bisoxazolines have been synthesized via reaction of p‐hydroxyphenyl‐2‐oxazoline with dihalides. These bisoxazolines may be used as chain extenders or crosslinkers for resins, monomers or polymers containing various acidic groups, including phenolics, via step‐growth (1 : 1) reactions. As an illustration, a phenol‐formaldehyde polycondensate (Alnovol) and an enzyme oligomerized bisphenol A resin, as well as poly (p‐hydroxystyrene), was chain extended and crosslinked to produce thermosets with high glass transition temperatures. The new bisoxazolines were also polymerized with diphenol compounds, such as diphone D and bisphenol P to generate linear or branched oligomers and polymers. Differential scanning calorimetry was used to evaluate the potential for polymerization and crosslinking reactions. Preliminary results showed that the new, ether‐linked bisoxazolines have potential for formulating high performance thermosets. Copyright © 2002 John Wiley & Sons, Ltd.